In a new study featured on Science Advances, Yichao Zhao and a research group in integrated bioelectronics and materials and engineering in the U.S. engineered a disposable, free-standing electrochemical sensing system (FESS). The FESS allowed them to realize a system-stage design technique to address the challenges of wearable biosensors in the presence of movement and enable seamless integration with client electronics.
The group built a FESS-enabled smartwatch that includes sweat sampling, electrochemical sensing and data show or transmission inside a self-contained wearable platform. The group used the FESS-smartwatch to observe the profiles of sweat metabolites among people in sedentary and high-intensive exercise settings.
The internet-of-things (IoT) infrastructure can be used in wearable consumer electronics to transform customized and precision drugs by harvesting physiologically relevant data with minimal user intervention. Scientists have often used physical sensors in business wearable platforms to trace a consumer’s bodily exercise and essential indicators.
Nonetheless, to realize insight into the body’s dynamic chemistry, researchers require electrochemical sensing surfaces to focus on the biomarker molecules within non-invasively retrieved body fluids such as sweat.
To perform this, it’s crucial to engineer the information delivery pathway from the skin to a readout unit. For electrochemical sensing, the information delivery pathway should sample and deliver the biomarker-wealthy biofluid to the sensor surface in a microfluidic construction, followed by sign transduction via interconnected components to the readout electronics.
The signal must be maintained alongside this pathway in the presence of motion-induced pressure.
